# STC SA2172SO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Appalachian Accessories, United States
- Description: Replacement of Cleveland brake discs, P/N 164-15A or 164-115A, with Appalachian stainless steel brake discs, P/N 75-15A.
- Status date: September 25, 1987
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A4CE](https://openairdocs.org/tcds/A4CE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FA2E3C6CA39BC35C85256CC200015A98.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2172SO

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 206 Series ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))

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